Remove ballast from room if possible.
Take down that panda film. Just paint your walls flat white.
Get a bigger res if all those buckets are being ran from that one 55 gal drum.
Unless he has deep pockets and connections he isn’t getting elite genetics. He is going to have to come upon clones for any of the top notch stuff.
The list of top genetics is endless;
AJ sour diesel
Headband
91 chem
Sensi Star
Sativa og
Etc
Etc
Sounds like you need help from a "master" grower since you've had them a while now and can't get rid of them. No one is being a dick. Post some pics if your serious.